2. Signaling Pathways
  3. MAPK/ERK Pathway
  4. p38 MAPK

p38 MAPK

p38 MAPK

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The p38 MAPK family consists of highly conserved proline-directed serine-threonine protein kinases that are activated in response to a number many growth factors, cytokines, and chemotactic substances, such as vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), PDGF, TNF, interleukins, lipopolysaccharide (LPS) and formyl-methionyl-leucyl-phenylalanine (fMLP). It is well known that p38 is involved in inflammation, apoptosis, cardiomyocyte hypertrophy and cell differentiation.

The p38 MAPK family is composed of four proteins: p38α (encoded by the gene Mapk14), p38β (Mapk11), p38γ (Mapk12), and p38δ (Mapk13). Their coding genes have a distinct tissue distribution and they appear differentially expressed, being Mapk14 the most highly expressed. p38 MAPKs are substrates for three MAP2K (MKK6, MKK3, and MKK4). The contribution of each of these MAP2K to p38 MAPKs activation depends on the stimulus and the cell type. The MAP3Ks that lead to p38 MAPKs activation are ASK1, DLK1, TAK1, TAO1, TAO2, TPL2, MLK3, MEKK3, MEKK4, and ZAK1.

p38 MAPK Isoform Specific Products:

p38 MAPK Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N2736
    3′,4′,7-Trihydroxyflavone
    		Inhibitor 99.04%
    3′,4′,7-Trihydroxyflavone is an orally active inhibitor of OXA-48 (IC50 = 1.89 μM) and COX-1 (IC50 = 36.37 μM). 3′,4′,7-Trihydroxyflavone exhibits antioxidant and anti-inflammatory properties, inhibiting the release of inflammatory cytokines such as IL-6, IL-8, and TNF-α. 3′,4′,7-Trihydroxyflavone inhibits H2O2-induced neuronal apoptosis and ROS accumulation, and exerts anti-neuroinflammatory effects by suppressing the JNK-STAT1 pathway. 3′,4′,7-Trihydroxyflavone exhibits antimicrobial and antibiotic-modifying activities against multidrug-resistant Gram-negative enteric bacteria. 3′,4′,7-Trihydroxyflavone inhibits RANKL-induced osteoclast formation via NFATc1. 3′,4′,7-Trihydroxyflavone activates the CREB-BDNF axis and restores scopolamine (HY-N0296)-induced memory deficits in mice.
    3′,4′,7-Trihydroxyflavone
  • HY-145564
    Emprumapimod
    		Inhibitor 99.39%
    Emprumapimod (PF-07265803) is a potent, orally active and selective inhibitor of p38α MAPK directly inhibits LPS-induced IL-6 production from RPMI-8226 cell (IC50=100 pM). Emprumapimod can be used for the research of dilated cardiomyopathy and acute inflammatory pain.
    Emprumapimod
  • HY-P10414A
    Klotho-derived peptide 1 hydrochloride
    		Inhibitor 99.67%
    Klotho-derived peptide 1 (KP1 human) hydrochloride blocks TGF-β/TGF-β receptor 2 interaction, inhibits TGF-β-induced activation of Smad2/3 and mitogen-activated protein kinase (MAPK), and exhibits anti-fibrotic and kidney protective effects in mouse model.
    Klotho-derived peptide 1 hydrochloride
  • HY-120111
    MW-150
    		Inhibitor 99.89%
    MW150 (MW01-18-150SRM) is a selective, CNS penetrant, and orally active inhibitor of p38α MAPK with a Ki of 101 nM. MW-150 inhibits the ability of the endogenous p38α MAPK to phosphorylate an endogenous substrate MK2 in activated glia.
    MW-150
  • HY-14305A
    BMS-582949 hydrochloride
    		Inhibitor 98.90%
    BMS-582949 hydrochloride is an orally active and highly selective p38α MAPK inhibitor, with an IC50 of 13 nM. BMS-582949 hydrochloride displays a significantly improved pharmacokinetic profile and is effective in inflammatory disease.
    BMS-582949 hydrochloride
  • HY-150612
    (R)-STU104
    		Inhibitor 99.91%
    (R)-STU104 is a potent and orally active TAK1-MKK3 interaction inhibitor with IC50s of 0.58 μM and 4.0 μM for TNF-α and MKK3 phosphorylation. (R)-STU104 suppresses the TAK1/MKK3/p38/MnK1/MK2/elF4E signal pathways through binding with MKK3 and disrupting the TAK1 phosphorylating MKK3. (R)-STU104 can be used for researching ulcerative colitis.
    (R)-STU104
  • HY-131335
    p38α inhibitor 2
    		Inhibitor 98.33%
    p38α inhibitor 2 is a highly potent and selective p38α MAPK inhibitor, with a pIC50 of 9.6. p38α inhibitor 2 inhibits the hERG ion channel (IC50=27 μM) and shows a promising selectivity profile when tested in a panel of 51 other protein kinases (<30% inhibition at 10 μM concentration) and a panel of 141 other biological targets.
    p38α inhibitor 2
  • HY-N1098
    Velutin
    		Inhibitor 98.60%
    Velutin is a flavonoid. Velutin can be extracted from mistletoe. Velutin inhibits mushroom Tyrosinase activity with an IC50 of 910.1 μM. Velutin inhibits p38 phosphorylation, the NF-κB pathway and the MAPK pathway. Velutin prevents articular cartilage degeneration and subchondral bone loss. Velutin slows down the progression of intervertebral disc degeneration. Velutin exhibits inhibitory effects on melanogenesis, skin whitening, anti-inflammatory, anti-allergic, anti-oxidant and antibacterial activities. Velutin can be used in studies related to pigmented diseases, osteoarthritis and intervertebral disc degeneration.
    Velutin
  • HY-NP192
    Sericin
    		Inhibitor
    Sericin is an orally active globular protein produced by silkworm cocoons. Sericin inhibits the expression of COX2, iNOS, TLR4, MAPK and NF-κB; reduces the levels of IL-18, IL-1 and CCL2; antagonizes the activity of AChE; and downregulates the expression of Bcl-2. Sericin enhances the PI3K/AKT-mediated insulin signaling pathway. Sericin inhibits the activity of tyrosinase (Tyrosinase), scavenges ROS, chelates metal ions, and increases the levels of antioxidant enzymes. Sericin induces apoptosis and arrests the cell cycle. Sericin exhibits antibacterial, moisturizing, cardioprotective and anticoagulant properties. Sericin can be used in research related to type 2 diabetes, hyperlipidemia, obesity, Alzheimer's disease, colon cancer, peripheral nerve injury and ischemic myocardial infarction.
    Sericin
  • HY-N4119
    Neoeriocitrin
    		Inhibitor 99.97%
    Neoeriocitrin is a Naringin (HY-N0153) analogue found in Drynaria Rhizome. Neoeriocitrin induces cells proliferation, differentiation, up-regulates type I collagen, osteocalcin, and key osteogenic markers, and increases ALP activity. Neoeriocitrin increases expression of Runx2, COL I, OCN and Beclin1. Neoeriocitrin inhibits phosphorylation of P38 mitogen-activated protein kinase, reduces acetylcholinesterase (AChE) activity, and increases choline acetyltransferase (ChAT) activity. Neoeriocitrin reduces apoptosis and induces autophagy. Neoeriocitrin can be used for the researches of osteoporosis and Alzheimer's disease.
    Neoeriocitrin
  • HY-112389
    p38 MAP Kinase Inhibitor III
    		Inhibitor 98.77%
    p38 MAP Kinase Inhibitor III (compound 7h) is a p38 MAPK inhibitor with an 50 of 0.9 μM. p38 MAP Kinase Inhibitor III also inhibits IL-1β and TNF-α release with 50 values of 0.37 μM and 0.044 μM, respectively.
    p38 MAP Kinase Inhibitor III
  • HY-11087
    SD 0006
    		Inhibitor 98.22%
    SD 0006 (SD-06) is an orally active, selective, ATP-competitive and potent diaryl pyrazole inhibitor of p38α MAP kinase, with an IC50 of 110 nM for p38α.
    SD 0006
  • HY-16715
    Acumapimod
    		Inhibitor 99.68%
    Acumapimod (BCT197) is an orally active p38 MAP kinase inhibitor, with an IC50 of less than 1 μM for p38α.
    Acumapimod
  • HY-15873A
    FTI 276 TFA
    		Inhibitor 98.31%
    FTI 276 TFA is a farnesyltransferase (FTase) inhibitor with an IC50 of 0.5 nM, and it exhibits selectivity for FTase over geranylgeranyltransferase I (GGTase I). FTI 276 TFA blocks the farnesylation of H-Ras and K-Ras4B, causes inactive Ras-Raf complexes to accumulate in the cytoplasm, and inhibits constitutive MAPK activation. FTI 276 TFA reduces the number, incidence and volume of tumors, and restricts the growth of tumors expressing activated K-ras. FTI 276 TFA can be used in research related to pulmonary adenoma.
    FTI 276 TFA
  • HY-172581
    Clifutinib
    		Inhibitor 99.59%
    Clifutinib is an orally active and selective internal tandem duplication mutation of FMS-like tyrosine kinase 3 (FLT3-ITD) inhibitor with an IC50 value of 15.1 nM. Clifutinib exerts strong antiproliferative effects on FLT3-ITD acute myeloid leukemia (AML) cell lines (MV-4-11: IC50 = 1.5 nM; MOLM-13: IC50 = 1.4 nM). Clifutinib inhibits the activity of FLT3-ITD kinase and blocks the downstream RAS/MAPK, PI3K/AKT, and JAK/STAT5 signaling pathways of FLT3. Clifutinib induces apoptosis of acute myeloid leukemia (AML) cells with FLT3-ITD mutations. Clifutinib demonstrates significant antitumor efficacy in mice bearing MV-4-11 or MOLM-13 xenografts. Clifutinib is promising for research of relapsed/refractory FLT3-ITD-positive acute myeloid leukemia.
    Clifutinib
  • HY-W097625
    6-Methoxyflavone
    		Inhibitor 99.73%
    6-Methoxyflavone is an orally active methoxyflavone. 6-Methoxyflavone suppresses neuroinflammation in microglia through the inhibition of TLR4/MyD88/p38 MAPK/NF-κB dependent pathways and the activation of HO-1/NQO-1 signaling. 6-Methoxyflavone induces S-phase arrest through the CCNA2/CDK2/p21CIP1 signaling pathway in HeLa cells. 6-Methoxyflavone inhibits NFAT Translocation into the nucleus and suppresses T cell activation. 6-Methoxyflavone partially restores chronic ethanol-induced behavioral deficits in mice. 6-Methoxyflavone antagonizes chronic constriction injury and diabetes associated neuropathic nociception expression. 6-Methoxyflavone can be used for the study of cancer, inflammation and neurological diseases.
    6-Methoxyflavone
  • HY-160851
    GDC-3280
    		Inhibitor 98.82%
    GDC-3280 (AK3287; AKEX0011) is an orally active compound based on Pirfenidone (HY-B0673)'s phenyl pyridone scaffold. GDC-3280 alleviates the inflammatory and fibrotic reaction of silicosis by inhibiting the ASK1-p38 MAPK pathway and regulating macrophage polarization. GDC-3280 exhibits anti-inflammatory and anti-fibrotic effects.
    GDC-3280
  • HY-N4028
    Hydrangenol
    		Inhibitor 99.63%
    Hydrangenol is an orally active antiphotoaging compound. It can be isolated from Hydrangea serrata leaves. Hydrangenol prevents wrinkle formation by reducing MMP and inflammatory cytokine expression and increasing moisturizing factors and antioxidant genes level.
    Hydrangenol
  • HY-N7043
    Isosilybin A
    		Inhibitor 99.63%
    Isosilybin A is a PPARγ agonist that can be isolated from silymarin. Isosilybin A activates extrinsic and intrinsic pathways of apoptosis through targeting of the Akt-NF-kB-AR axis. Isosilybin A can relieve the inflammatory response in the rosacea model via inhibiting Erk and p38 signaling pathways and M1 macrophage polarization, with its targets related to RELA and VEGFA. Isosilybin A has anti-prostate cancer (PCA) activity[1][2][3].
    Isosilybin A
  • HY-112401
    p38 MAP Kinase Inhibitor IV
    		Inhibitor 99.0%
    p38 MAP Kinase Inhibitor IV is a highly specific ATP-competitive p38α MAPK inhibitor with IC50s of 0.13 and 0.55 μM for p38α and p38β MAPK, respectively.
    p38 MAP Kinase Inhibitor IV
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
p38 MAPK Isoform Comparison

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